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12120210120220 = 2251567415992987
BaseRepresentation
bin1011000001011111010011…
…0100011001111000011100
31120220200101021121221001021
42300113310310121320130
53042034142242321340
641435540410053524
72360441051122216
oct260276464317034
946820337557037
1012120210120220
1139531747043a4
121438b89a1a2a4
1369bc14295737
142dc89abbd5b6
1516041b57de4a
hexb05f4d19e1c

12120210120220 has 48 divisors (see below), whose sum is σ = 25475081748480. Its totient is φ = 4843773152064.

The previous prime is 12120210120209. The next prime is 12120210120259. The reversal of 12120210120220 is 2202101202121.

It is a happy number.

12120210120220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12120210120194 and 12120210120203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130296567 + ... + 130389553.

It is an arithmetic number, because the mean of its divisors is an integer number (530730869760).

Almost surely, 212120210120220 is an apocalyptic number.

12120210120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120210120220 is an abundant number, since it is smaller than the sum of its proper divisors (13354871628260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12120210120220 is a wasteful number, since it uses less digits than its factorization.

12120210120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98722 (or 98720 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12120210120220 its reverse (2202101202121), we get a palindrome (14322311322341).

The spelling of 12120210120220 in words is "twelve trillion, one hundred twenty billion, two hundred ten million, one hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1567 3134 4159 6268 7835 8318 15670 16636 20795 31340 41590 83180 92987 185974 371948 464935 929870 1859740 6517153 13034306 26068612 32585765 65171530 130343060 145710629 291421258 386732933 582842516 728553145 773465866 1457106290 1546931732 1933664665 2914212580 3867329330 7734658660 606010506011 1212021012022 2424042024044 3030052530055 6060105060110 12120210120220